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Consolidated Statements of Changes in Stockholders' Equity Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Dividends on perferred stock (in dollars per share) | $ 0 | $ 0 | $ 150
Dividends on common stock (in dollars per share) | $ 0.70 | $ 0.66 | $ 0.62
Issuance of common shares pursuant to the Dividend Reinvestment Plan (in shares) | 30,655 | 30,059 | 50,446
Issuance of common shares pursuant to the Deferred Compensation Plan (in shares) | 9,043 | 6,875 | 4,683
Issuance of common shares pursuant to the First Retirement & Savings Plan (in shares) | 0 | 0 | 558
Issuance of restricted common shares pursuant to the Stock Incentive Plan (in shares) | 13,250 | 47,339 | 2,910
Stock issued during period, new issue (in shares) | 0 | 98,710 | 0
Stock Issued During Period, Shares, Conversion of Convertible Securities | 0 | 0 | 1,355,319
number of preferred shares converted to common shares | 0 | 0 | 5,500
Purchase of treasury shares (in shares) | 3,900 | 20,734 | 0
Issuance of common shares pursuant to the exercise of stock options (in shares) | 10,500 | 27,500 | 2,500
Common Stock |  |  |
Stock issued during period, new issue (in shares) | 947,368 | 0 | 0
First Clover Leaf [Member] |  |  |
Stock Issued During Period, Shares, Acquisitions | 0 | 0 | 2,600,616
First BancTrust [Member] |  |  |
Stock Issued During Period, Shares, Acquisitions | 1,643,900 | 0 | 0
SCB Bancorp [Member] |  |  |
Stock Issued During Period, Shares, Acquisitions | 1,330,571 | 0 | 0

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